Guild stash items disappearing

Out guild stash suddenly emptied overnight, theres only 3 of us in the guild and we know each other irl so obviously theres no trust issues and we we're all equally confused about this. And then like 10 minutes ago i put 2 Constrictor maps in the guild stash for my friend, and when he went to check the guild stash the maps had vanished.

I went to double check my own stash and they werent there either so they just literally vanished. We didn't have anything too expensive in the stash but still stuff we used and very much didnt want to lose. There was 2 divines in the stash that were of value, don't remember the other items.

Could you guys look into this?